SECTION III: PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
A cylinder must be recharged or replaced if its
weight loss exceeds 10 percent of difference
between full and empty weight marked on
b. Inspect the fire extinguisher data plate to insure that
hydrostatic tests have been performed on each cylinder
in the past five years.
c. Clean cylinder discharge nozzles of foreign matter.
d. Before replacing fixed fire extinguisher cylinders,
operate remote control discharge handles to make sure
or will not
that cables do not bind, and that they control discharge
e. Seal remote control handles before checking system.
f. Ensure fire extinguisher interlock switch assembly is
operating properly by pulling out safety pin and letting
cover plate swing down. A clicking sound should be